Interpretation and development of leading industry software programs. Dipmeter data, borehole image logs and interpretation 1. Training log analysis softwares dipmeter processing. Dipmeter data, borehole image logs and interpretation kris vickerman may 25, 2016 2. The dipmeter advisor system attempts to emulate human expert performance in dipmeter interpretation. The algorithm is based on pattern recognition and feature extraction methods similar to schlumbergers geodip processing. Exports synthetic data for use with other programs. Stratigraphic interpretation using formation imaging and. Jmp, data analysis software for scientists and engineers, links dynamic data visualization with powerful statistics, on the desktop. The application of borehole image logs to fluvial facies interpretation m. The best photo editing software for 2020 whether youre a casual smartphone shooter or a professional using an slr, software can get the most out of your images. Fill in the form below and a link to the download file. For structural interpretation of dipmeter data, the.
Geotools synthetic seismogram, software, geophysical. Dipmeter tools achieve this result by measuring some sensitive formation parameter by means of three or more identical sensors mounted on caliper arms so as to scan in detail different sides of the borehole wall. It is characteristic of the class of programs that deal with what has come to be known. Aapg explorer is a monthly petroleum geology publication that covers the entire span of energy interest, with emphasis on exploration and development of hydrocarbons and energy minerals. Borehole imaging is among the fastest and most accurate methods for collecting high resolution subsurface data. A number of other computer generated presentations have been introduced. The geosystems dipmeter is a water level indicator typically used to measure the depth of water levels in boreholes, standpipes or observation wells. Bgs dipmeter water level indicators are supplied with metric graduated tapes marked throughout in centimeters. Dipmeter definition is an instrument designed for determining the direction and angle of dip of geological formations. Schlumberger fundamentals of dipmeter interpretation. The focus is on being able to understand the job functions that are typically performed at the wellsite, and what use is made of the large amounts of data collected. Dipmeter, water level meter, dipper earth sciences. Dip types can be individually hidden from the program.
Its primary features include full log editing functions, interactive well correlations, comprehensive petrophysical analyses, singlemultiwell dipmeter interpretation, integration of mudlog data, seismic synthetics, cross sections, elaborate composite log design, and quick mapping. Geologists, engineers, technicians and analysts use petra for exploration, exploitation, infill drilling, reserves analysis, unconventional plays, production analysis and more. Fill in the form below and a link to the download file will be. The dipmeter advisor a dipmeter interpretation workstation. Techniques include scat, stick apparent dip plots, several polar projection types of both dips and pole to dip, fold axis plots, tangent plots, rose diagrams, synthetic deviation plots, tadpole or arrow plots, and dip rotation residual dip analysis. Davis r, austin h, carlbom i, frawley b, pruchnik p, sneiderman r, gilreath aj 1981 the dipmeter advisor interpretation of geological signals. Structural and stratigraphic interpretation of dipmeters and boreholeimaging logs ssi. Geotools dipmeter interpretation, scat analysis geotools. This volume portrays key applications of dipmeter and image log data across the exploration and production life cycle. Quicksyn, quickdip, quickdip dipmeter digitizer, synthetic seismogram, dipmeter, scat, seismograms, dipmeters, dipmeter digitizing. Associated interpretation workflows offer the high level of detail that is needed to make operational decision and to increase the predictability of. Petra from ihs markit is a costeffective software solution for managing, manipulating and visualizing integrated geological, geophysical and engineering data. Schlumbergerdoll research old quarry road ridgefield, connecticut 06877 abstract we discuss commercial expert system development, using our experience with the dipmeter advisor system as a case study.
The dipmeter advisor a dipmeter interpretation workstation gordy g. Quicksyn is an easy to use program that generates synthetic seismograms from sonic log data and optional density log data. Case studies and applications to deepwater deposits r. Dipmeter also refers to an older tool with 4, 6 or 8 buttons borehole image logs refer to any tool that samples an array of measurements in the borehole. The main menu items are accessible from the quickdip toolbar. We discuss commercial expert system development, using our experience with the dipmeter advisor system as a case study. The color assignments, namely green, red, blue, black, and yellow, are purely arbitrary but have become an industry standard by common usage. Schmidt chapter 10 167 calibrating borehole image and dipmeter logs with outcrops and behindoutcrop cores. This software provides structural and stratigraphic interpretation of processed dipmeter data or image derived dips. Rafik baouche received a magister degree in geophysical applications from the university of boumerdes algeria and a doctorate of earth sciences from the university of boumerdes and university of rennes1, france in 2008.
Analysis, interpretation, and plotting of dipmeter data. The dipmeter advisor was an early expert system developed in the 1980s by schlumberger with the help of artificialintelligence workers at mit to aid in the analysis of data gathered during oil exploration. Dipmeter wagtech dipmeters are robust, light and convenient in use, and are all fitted with an extremely strong tape marked in metres and centimetres. Reassessment of structural interpretation using 3d visualization of conventional logs and dipmeter analysis, east zeit field, gulf of suez, egypt. The dipmeter conductivity curves, however, carry other information of importance for reservoir engineers. It utilizes dipmeter patterns together with local geological knowledge and measurements from other logs. Geological interpretation software using petra ihs markit.
The move suite provides a platform for integrating and interpreting data, crosssection construction, 3d model building, kinematic restoration and validation, geomechanical modelling, fracture modelling, fault response modelling, fault and stress analysis, and sediment modelling move 2019. Quickdip is an easy to use program for the interpretation of dipmeter data using statistical curvature analysis techniques scat. Sometimes expert systems are written in computer languages that easily handle rules such as lisp, but once fully tested are usually translated to basic, c. Society of professional well log analysts annual logging symposium, 28th. Two case studies, including whole core analyses, are used to demonstrate the synergism between formation imaging and dipmeter interpretation. Dipmeter refers to the bedding data depth, dip, azimuth, quality, etc. Gs is a seamlessly integrated suite of geotechnical programs. Applications of dipmeter and borehole image data in static. Crains petrophysical handbook structural analysis dip. Many features are entirely contained in the display software, and there are. While the data is too sparse for definitive results, several ideas have emerged as important and suggestive as guidelines for subsequent commercial expert system undertakings. Dipmeter digitizing, well logging, software geotools geotools. Conductors are stainless steel ensuring little or no stretch.
Aq12 applications of dipmeter and borehole image data in static. A bedding plane crossing the borehole at an angle would generate anomalies at each sensor. Geotechs standard dipmeter is a water level measuring. Analysis, interpretation, and plotting of dipmeter data using rda. The atex dipmeter is a water level measuring instrument. Data may be extracted from las files with lasdatasampler 4 included with dipmeter3, or created as a spreadsheet tadpole plots dip magnitude and azimuth plotted against depth in same track as tadpole. Quickdip supports import of dipmeter data from ascii files and allows the user to save interpretation project files. The atex dipmeter from geotech is a high precision water level measuring instrument designed for use in harsh landfill environments. Core analysis data integration proficient in integrating regular and special core analysis scal data for improved petrophysical logtocore calibrations and facies associations. Most such programs are limited to specific areas such as dipmeter interpretation, electrofacies determination, reservoir characterization, blowout prevention, drilling fluid selection, etc. Ultrasonic images ubi, cbil, cast lwd images gr, density, resistivity and so on. All boreholes detailed in this release except esrab19 and esrab1916 have been geophysically logged by century wireline services with a suite of tools including natural gamma, caliper, long and short spaced density, resistivity, deviation and dipmeter. Shareware is software that is distributed free on a trial basis with the understanding that the user may need or want to pay for it laterit is not freeware, so consider doing the right thing and pay the usually nominal registration fee.
Available with tape lengths of 30m, 50m, 100m, 200m, and 300m with millimetre graduations please specify your desired length in the remarks on your enquiry. Structural interpretation of dipmeter log a case study. Plots include dip logs, polar plots, fold axis plots, tangent diagrams, rose plots, stick plots, scat plots, and syndev plots. The key objective of dipmeter and boreholeimage interpretation is to describe structural and stratigraphic features encountered by a. For the oilbased mud dip meter tool obdt, pattern recognition programs are. Internal adjustable potentiometer gives sensitivity control, sometimes required where saline conditions occur. They show the textural changes, the thin shale beds, and the open fractures that control the flow within the reservoirs. Objective the aim of this log is to determine the angle to the horizontal and the azimuth referenced to magnetic north and geographcal north of the dip of the planes cut by the well. Dipmeter 3 plots the following types of charts for a given depth interval from ascii data. Analytical techniques include fold axis analysis, residual dip analysis dip rotation, statistical curvature analysis scat, and synthetic deviation syndev.
Bruce has analyzed several hundreds of dipmeter and image log data sets and outcrop orientation data from a wide variety of structural geology settings including compressional, strike slip and extensional regimes. In this well, dipmeter log was recorded using four electrode dipmeter fed tool of gearhart inc. Dipmeter article about dipmeter by the free dictionary. The atex dipmeter is a high precision water level measuring instrument designed for use in harsh landfill environments. The program can calculate tvd, tvt, and tst and plot dipmeters and other depth. The role of the dipmeter data in fracture detection has been described. Quickdip dipmeter digitizer is an easy to use program for the digitizing of dipmeter. Schlumbergers dipmeter advisor system attempts to emulate human expert performance in dipmeter interpretation. This course provides a complete overview of wellsite operations from the perspective of the operations geologist and the wellsite geologist. The dipmeter advisor system a case study in commercial expert system development.
The advisor was generally not merely an inference engine and a knowledge base of 90 rules, but generally was a fullfledged workstation, running on one of xeroxs 1100 dolphin lisp machines. Dipmeter also refers to an older tool with 4, 6 or 8 buttons borehole image logs refer. In perhaps the earliest routine geological computer application, the digital microresistivity logs were correlated statistically. Geotechs standard dipmeter is a water level measuring instrument designed for people working in routine groundwater monitoring.
The main menu items are accessible from the quicksyn toolbar. Most boreholes are drilled inclined rather than vertically in order to intersect inclined seams at steeper angles. Using the compudip program, automatic picking of the 4pad dipmeter is performed. Dip magnitude is plotted as a circle and azimuth is plotted as a line segment. Images of these oriented sedimentary features, in combination with conventional dipmeter interpretation, define the stratigraphic units and the reservoir geometry beyond the wellbore. The fms image examiner is an interactive computer program for. Recent breakthroughs in acquisition, tool design, and modeling software provide realtime subsurface images of incredible detail, from the drill bit straight to a workstation. It is a typical example of the class of programs that deal with what has come to be known as signal to symbol transformation. Breaking news stories, features, profiles of personalities, comment columns, and association information is. The dipmeter advisor system a case study in commercial. In this well, a minor normal drag fault has been identified and its orientation has been determined. The dipmeter raw data has been processed with inhouse software daisy. Structural interpretation of dipmeter and image logs is an essential technique to locally calibrate seismic maps and capture gross rock volume.
It illustrates the value of integrating highresolution dipmeter and borehole image data with seismic, welllog, and geological knowledge in order to construct integrated subsurface modes. Sonic analysis, borehole deviation and oilgas water saturation analysis. Appropriately colored pencils or ink markers are used to join dip arrows to emphasize the patterns. Dipmeter data, borehole image logs and interpretation.
Quicksyn supports import of well log data from ascii files, including las format, and allows the user to save. Exploration in braided stream environments using dipmeter. Cox jw 1968 interpretation of dipmeter data in the devonian carbonates and evaporites of the rainbow and zama areas. Exploration and development of these systems are challenging despite the simple sand geometry involved. From these primitive beginnings, however, the dipmeter has evolved to become a device.
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